The following information is available from the annual reports of Wildhorse Company and Ayayai Inc.

$($Amounts in millions$)$

Sales revenue

Cost of goods sold

Operating expenses

Income before taxes

Net income

Wildhorse

$$30,850$

$20,000$

$7,030$

$4,540$

$1,800$

Ayayai

$$44,600$

$26\mathrm{.}800$

$9,190$

$6,680$

$3,750$

$($a$)$

Calculate the profit margin and gross profit rate for each company.